Patch "ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt" has been added to the 4.4-stable tree

This is a note to let you know that I've just added the patch titled

    ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     alsa-timer-fix-leak-in-events-via-snd_timer_user_tinterrupt.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let [off-list ref] know about it.

From e4ec8cc8039a7063e24204299b462bd1383184a5 Mon Sep 17 00:00:00 2001

From: Kangjie Lu <redacted>
Date: Tue, 3 May 2016 16:44:32 -0400
Subject: ALSA: timer: Fix leak in events via snd_timer_user_tinterrupt
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

From: Kangjie Lu <redacted>

commit e4ec8cc8039a7063e24204299b462bd1383184a5 upstream.

The stack object “r1” has a total size of 32 bytes. Its field
“event” and “val” both contain 4 bytes padding. These 8 bytes
padding bytes are sent to user without being initialized.

Signed-off-by: Kangjie Lu <redacted>
Signed-off-by: Takashi Iwai <redacted>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 sound/core/timer.c |    1 +
 1 file changed, 1 insertion(+)

--- a/sound/core/timer.c
+++ b/sound/core/timer.c

@@ -1282,6 +1282,7 @@ static void snd_timer_user_tinterrupt(st
 	}
 	if ((tu->filter & (1 << SNDRV_TIMER_EVENT_RESOLUTION)) &&
 	    tu->last_resolution != resolution) {
+		memset(&r1, 0, sizeof(r1));
 		r1.event = SNDRV_TIMER_EVENT_RESOLUTION;
 		r1.tstamp = tstamp;
 		r1.val = resolution;

Patches currently in stable-queue which might be from kangjielu@gmail.com are

queue-4.4/alsa-timer-fix-leak-in-events-via-snd_timer_user_ccallback.patch
queue-4.4/alsa-timer-fix-leak-in-sndrv_timer_ioctl_params.patch
queue-4.4/alsa-timer-fix-leak-in-events-via-snd_timer_user_tinterrupt.patch